Trait fidl::encoding::ValueTypeMarker

pub trait ValueTypeMarker: TypeMarker {
    type Borrowed<'a>: Encode<Self>;

    // Required method
    fn borrow<'a>(value: &'a Self::Owned) -> Self::Borrowed<'a>;
}

A FIDL value type marker.

Value types are guaranteed to never contain handles. As a result, they can be encoded by immutable reference (or by value for Copy types).

Required Associated Types

type Borrowed<'a>: Encode<Self>

The Rust type to use for encoding. This is a particular Encode<Self> type cheaply obtainable from &Self::Owned. There are three cases:

• Special cases such as &[T] for vectors.
• For primitives, bits, and enums, it is Owned.
• Otherwise, it is &Owned.

Required Methods

fn borrow<'a>(value: &'a Self::Owned) -> Self::Borrowed<'a>

Cheaply converts from &Self::Owned to Self::Borrowed.

Implementations on Foreign Types

impl ValueTypeMarker for f32

type Borrowed<'a> = <f32 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for i8

type Borrowed<'a> = <i8 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for u16

type Borrowed<'a> = <u16 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for i32

type Borrowed<'a> = <i32 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for i64

type Borrowed<'a> = <i64 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for u8

type Borrowed<'a> = <u8 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for f64

type Borrowed<'a> = <f64 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for i16

type Borrowed<'a> = <i16 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for u32

type Borrowed<'a> = <u32 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for bool

type Borrowed<'a> = <bool as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

impl ValueTypeMarker for u64

type Borrowed<'a> = <u64 as TypeMarker>::Owned

fn borrow<'a>(value: &'a <Self as TypeMarker>::Owned) -> Self::Borrowed<'a>

Implementors

impl ValueTypeMarker for FrameworkErr

type Borrowed<'a> = <FrameworkErr as TypeMarker>::Owned

impl ValueTypeMarker for Status

type Borrowed<'a> = <Status as TypeMarker>::Owned

impl ValueTypeMarker for Ambiguous1

type Borrowed<'a> = AmbiguousNever

impl ValueTypeMarker for Ambiguous2

type Borrowed<'a> = AmbiguousNever

impl ValueTypeMarker for EmptyStruct

type Borrowed<'a> = ()

impl ValueTypeMarker for EpitaphBody

type Borrowed<'a> = &'a <EpitaphBody as TypeMarker>::Owned

impl ValueTypeMarker for LargeMessageInfo

type Borrowed<'a> = &'a <LargeMessageInfo as TypeMarker>::Owned

impl ValueTypeMarker for TransactionHeader

type Borrowed<'a> = &'a <TransactionHeader as TypeMarker>::Owned

impl ValueTypeMarker for WireMetadata

type Borrowed<'a> = &'a <WireMetadata as TypeMarker>::Owned

impl<T: ValueTypeMarker> ValueTypeMarker for Boxed<T>

type Borrowed<'a> = Option<<T as ValueTypeMarker>::Borrowed<'a>>

impl<T: ValueTypeMarker> ValueTypeMarker for Optional<T>

type Borrowed<'a> = Option<<T as ValueTypeMarker>::Borrowed<'a>>

impl<T: ValueTypeMarker> ValueTypeMarker for OptionalUnion<T>

type Borrowed<'a> = Option<<T as ValueTypeMarker>::Borrowed<'a>>

impl<T: ValueTypeMarker, const N: usize> ValueTypeMarker for Array<T, N>

type Borrowed<'a> = &'a [<T as TypeMarker>::Owned; N]

impl<T: ValueTypeMarker, const N: usize> ValueTypeMarker for Vector<T, N>

type Borrowed<'a> = &'a [<T as TypeMarker>::Owned]

impl<const N: usize> ValueTypeMarker for BoundedString<N>

type Borrowed<'a> = &'a str